Posterior-Stabilized Tibial Tray

For a total knee prosthesis that is posterior-stabilized, the FDA recommends you perform shear fatigue testing of the UHMWPe tibial post. Five test samples are recommended at various loads to develop an AF/N curve with at least one sample surviving 10 million cycles. Patellofemoral implants should undergo increasing lateral shear loading under a constant physiological compressive force until component dislocation.

Recommended Test Machine